She wants to cosplay Asuka's spider kimono outfit. Now I've done kimonos before, but her is confusing the hell out of me. She's wearing it in a strange manner, and I can't tell if the right sleeve is hanging off and behind her, or if there is no right sleeve at all.

It's hanging behind her. Think of those less than savory/rounin/wanna be stylish samurai or lower class (I think) guys of the Tokugawa/Meiji who wanted full range of action for their dominant hand.

Same goes for that outfit. It's actually a dice girl outfit.

Dice girls had tattooes to signify the group/yakuza/criminal org/gambling house or tea house they were affiliated with. Asuka's is at the thigh. I think some of the period Japanese movies featured dice guys/dice boys at some point. So thats your point of reference for her sleeves.

I've seen figures of her released in this outfit which have two PAIRS of sleeves I think.

Some cosplayers opt to just do one sleeve---which can be accurate as far as some dice people go but I personally think there's two there.

awesome ive been looking for a tekken thread im planning on doing king from tekken 6 wearing his tapout clothes for wondercon 2011 any ideas on how to make/ where to buy his gear like elbow pads shinguards and stuff?

Finishing up a King cosplay myself( should have a pic uploaded). Have to add the white fabric to the lower parts but otherwise the mask is done. My friend is also going as Armor King. should have two versions each, Tapout and then Armor King with armor and King in a mexican looking pancho (saw it in the art for Tekken 4).
Anyone else going to..... Nekocon, Ausa or the upcomming Otakon? I don't see many Tekken cosplayers around ;_;